In a pressure cooker add oil, cumin seeds & pepper in it and let them crackle.
Add chopped onions and saute it for 2 minutes.
Add the remaining ingredients one by one with required amount of water and mix well. Now cover the lid and cook them for 2-3 whistles.
Once the pressure is released naturally, remove the lid and transfer the mixture to a blender and blend it until smooth.
Strain the soup through a fine mesh strainer to remove any fibrous bits of the drumstick.
In a pan add 1 tsp ghee and the strained mixture in it. Mix well and cook for 2 minutes.
Garnish with fresh coriander leaves and serve hot.
